Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2020
Income Statement [Abstract]
Total revenue	$ 12,952,594	$ 8,707,189	$ 9,175,296
Cost of goods sold (exclusive of depreciation and amortization, shown separately below) (a)	10,189,880	6,350,754	7,030,612
Operating expenses	1,961,473	1,637,191	1,498,043
Depreciation and amortization	303,541	265,195	251,174
Interest, net	56,972	46,679	53,419
Income before income taxes	440,728	407,370	342,048
Federal and state income taxes	100,938	94,470	78,202
Net income	$ 339,790	$ 312,900	$ 263,846
Net income per common share
Basic (in Dollars per share)	$ 9.14	$ 8.44	$ 7.14
Diluted (in Dollars per share)	9.10	8.38	7.10
Dividends declared per share (in Dollars per share)	$ 1.39	$ 1.32	$ 1.28